ALL meanings of groundmass
ground·mass
G g - noun groundmass the crystalline, granular, or glassy base or matrix of a porphyritic or other igneous rock, in which the more prominent crystals are embedded. 1
- noun groundmass The compact, finer-grained material in which the crystals are embedded in a porphyritic rock. 1
- noun groundmass (geology) The matrix of fine-grained crystalline material in which larger crystals are embedded. 0
- noun groundmass the matrix of igneous rocks, such as porphyry, in which larger crystals (phenocrysts) are embedded 0
- noun groundmass the small-grained matrix in which larger crystals are embedded 0